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public static bool traversefolder(string dir) //浏览目录
    {   
     DirectoryInfo Di = new DirectoryInfo(dir);
     string strSql = "";
     DataSet ds = new DataSet();
     if (!Di.Exists)
     {
      return false;
     }
     else
     {
      strSql = "INSERT INTO FolderList (PID,Name)VALUES('"+ FolderHelper.GetFileId(Di.Parent.ToString()) +"','"+ Di.Name.ToString() +"')";
      DbHelper.Sqlcmd(strSql);
     }

     if (listfolder(Di))
     {
      return true;
     }
     else
     {
      return false;
     }
    }

    public static bool listfolder(DirectoryInfo Di) //递归存储目录
    {
     string strSql = "";
     string DiName = "";
     DataSet ds = new DataSet();
     if (!Di.Exists)
     {
      return false;
     }
     else
     {
      DiName = Di.Name.ToString();
      DirectoryInfo [] dirs = Di.GetDirectories();
      foreach (DirectoryInfo dir in dirs)
      {
       strSql = "INSERT INTO FolderList (PID,Name) VALUES ('"+ FolderHelper.GetFileId(DiName) +"','"+ dir.Name.ToString() +"')";
       DbHelper.Sqlcmd(strSql);
       listfolder(dir);
      }
     }
     return true;
    }

浏览文件目录,并存入数据库